This image I have seen around a few places, but it always came with the Craigslist add in LA of

It's way past your weekday curfew! You sneak in from being out with your friends all night.
You're so horny you strip and start jacking off on the way to your room! You think Dad's asleep. But, when you turn the corner you see he's UP stroking his BIG COCK! You stop and watch Dad for a minute. Then you decide in order to not get into trouble you'll suck Dad's cock and he'll be cool.
Dad keeps staring at your ass in the mirror behind you! You keep showing it off for him! He gets up and starts EATING your ass like he eats Mom's pussy! Before you know it Dad starts fucking you!
Mom's been out of town on business and he hasn't had a hole to fuck